目的：研究血液动力学的一个重要参数—血流剪切率。
Purpose: an important parameter in the research of hemodynamic, the flow shear rate is studied in this paper.
对于湍流，按本方法计算的平均剪切率能合理地度量流体的平均剪切历史。
The average shear rate obtained with this method is a more reasonable measurement of the average shear history of fluid in turbulent pipe flow.
在生产改良沥青中，最佳的流变性能的最佳时间取决于混合物的组成和剪切率使用。
The optimal time which produces the best rheological properties of modified asphalt depends on the blend composition and on the shear rate used.
随着剪切率的提高，矿浆的粘度不断下降，而且在剪切率提高的初期下降幅度很大。
As the shear rate increased, the slurry viscosity fell and dropped greatly at the early stages of shear rate decrease.
根据剪切率和能量耗散率的定义，建立了幂律流体湍流剪切率与能量耗散率的关系式。
According to the definition, a relationship between the shear rate and the energy dissipation rate is obtained for turbulent flow of power law fluid.
在剪切率的锁定区间内，横向振幅增大，脱离剪切率锁定区问后，横向振幅迅速下降。
Transverse amplitude increases when shear rate falls into the lock-in range and decreases sharply when shear rate is out of lock-in range.
现场试验表明，这种管柱对聚合物的剪切率小于15 %，层段合格率达到10 0 %。
Onsite test shows that the shearing rate applied by pipe string was less than 15% and its qualification is 100%.
已找到这个温度、流变性能剪切率、爬行的时间和频率有的影响，百分比成份的媒体规管其关系的趋势。
It is found that temperature, shear rate, creeping time and frequency have impact on rheological properties and the percentage ingredients of media govern trends of their relations.
方法：对180例患者，572个动脉粥样硬化斑块的分布情况进行统计分析，观测血流剪切率与剪切应力。
Methods: The distribution of 572 arterial plaques in 180 patients were analysed statistically, and arterial shear rate was calculated as well.
研究发现初始滑移长度对低剪切率下的滑移行为起主要作用，而临界剪切率决定了高剪切率下的边界滑移程度。
It is found that the initial slip length controls the slip behavior at small shear rate, but the critical shear rate controls the boundary slip at high shear rate.
根据能量耗散率与剪切率的关系，采用体积平均能量耗散率计算环空管流的平均剪切率，以此来评价环空管流的剪切作用。
According to the relationship between energy dissipation rate and shear rate, average shear rate to evaluate the shear action for annular pipe flow is obtained by using energy dissipation rate.
此外，还要考虑产率和剪切敏感性。
这可能是由于在不同状态时产生剪切形变局部化的滑移面硬化率对瞬时拉应力的临界比值不同之故。
Presumably it is due to their different critical values of the ratio of slip plane hardening rate to current tensile stress for shear localization.
结果表明，在声压较低时， 流体间的剪切张力使得红细胞的溶血率、渗透脆性、脂质过氧化水平随作用时间及作用强度增加缓慢增长；
Results demonstrate that ultrasound exposure at low sound intensities leads to slight increases in hemolysis, osmotic fragility and lipid peroxidation due to the effect of shear stress.
试验结果表明，土壤剥蚀率随着水流剪切力的增加其对数呈线性关系。
The results showed that soil detachment rate increased with the increase of flow shear stress, their logarithm was linear.
渗透系数依赖于塑性剪切应变(率)。
The permeability coefficient is dependent on the plastic shearing strain (ratio).
得出，该方法是提高复合材料层间剪切强度和抗烧蚀性能的有效方法，它可使层间剪切强度提高17．5 ％ ，线烧蚀率减小58．6 ％ 。
The results show that the treatment makes the interlaminar shear strength of the composite increased 17.5% and the linear ablation rate decreased 58.6%.
这可能是由于它们产生剪切形变局部化的滑移面硬化率对瞬时拉伸应力的临界比值不同之故。
Presumably, it is due to their different critical values of the ratio of slip plane hardening rate to current tensile stress for shear localization.
试验结果表明，在正向剪切比和含水率一定时，接触面反向剪切破坏仍遵循摩尔-库仑破坏准则。
Experimental data show that while water content and previous shear ratio are fixed, failure of negative sheared interfaces still satisfy the Mohr-Coulomb criterion.
我厂铝板生产车间长期以来板材剪切精度没有得到解决，影响成品率的提高。
The accurate shearing of aluminum plate has long been a problem in our aluminum plate workshop, which hindered the enhancing of ratio of qualified product.
采用光电编码器、高速计数模板、PLC程序控制方案实现钢板的定位剪切，提高了中板成材率。
By using encoder, high speed counter module and PLC sequencing control in steel plate positioning shearing, medium plate yield have been increased.
剪切实验表明，胶合板的胶合强度和木破率都由于单板的压缩均提高了5％左右。
Bonding tests showed that compressing method could improve 5% of panels' bonding strength and percentage of wood failure.
结果表明，剪胀后的孔隙度、孔隙比、孔隙度增量、孔隙比增量、孔隙度变化率及孔隙比变化率均具有局部化特征，在剪切带中部其值最大。
The analytical results show that porosity, void ratio, increment of porosity, increment of void ratio, rate of porosity and rate of void ratio are non-homogeneous in shear band.
以某水利枢纽工程坝基声波探测为例 ，通过声速异常分析 ，对J1～J4层间剪切带连续率进行了推定 ，其部分成果经开挖验证具有一定的可靠性。
Based on the acoustic wave sounding of the dam foundation of a water control project, the continuous ratio of J1~J4 inter layer shear zone is infered by analyzing the acoustic velocity anomaly.
实验发现，提高转速可以提高熔体的剪切应力，从而提高气泡成核率，但不如施加振动效果明显。
The results showed that the imposed vibration may increase effectively the bubble nucleation rate, which was better than that via increasing rotation speed.
在聚合物携带液和油中，包裹作用使得预交联水膨体聚合物的吸水率和膨胀率减小，抗剪切能力增强。
Under the effect of wrap in the polymer fluid and oil, the water intake rate and swelling rate become weaker while the anti-shear ability become stronger.
单体两段滴加法中，当预加单体量小于30%时，聚合过程稳定，氨化剪切后超微胶乳透光率约65%；
When the pre-adding fraction of monomer was less than 30%, the polymerization could be carried out stably and a final micro-latex with 65% transparency was obtained.
应用应变梯度塑性理论对局部化剪切带内部(塑性)剪应变(率)规律进行了理论分析。
A theoretical analysis of localized strain and strain rate in shear band after localization occurs beyond the peak shear stress is carried out based on the strain gradient plasticity theory.
应用应变梯度塑性理论对局部化剪切带内部(塑性)剪应变(率)规律进行了理论分析。
A theoretical analysis of localized strain and strain rate in shear band after localization occurs beyond the peak shear stress is carried out based on the strain gradient plasticity theory.
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